Diagnostic Method
- Abnormality Judgment
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
| Malfunction Criteria | Threshold Value |
|---|---|
| Number of times that the difference between the Max. fuel level every 60 s and Min. fuel level every 60 s is 2 l (0.53 US gal, 0.44 Imp gal) or more (with enable condition established) | ≥ 16 time(s) |
| Maximum - Minimum tank pressure (with enable condition completed) | < 0 kPa (0.375 mmHg, 0 inHg) |
| Maximum - Minimum fuel temperature (with enable condition completed) | ≥ 7 °C (12.6°F) |
If the difference between the Max. fuel level every 60 s and Min. fuel level every 60 s is less than 2 l (0.53 US gal, 0.44 Imp gal), extend 60 s and make judgment with the Max. and Min. values for the fuel level in 60 s x 2. If there is no difference after the extension of 60 s, extend the time (60 s x 3, 60 s x 4, 60 s x 5) and continue the judgment. If the difference between the Max. fuel level every 60 s and Min. fuel level every 60 s is 2 l (0.53 US gal, 0.44 Imp gal) or more, the diagnosis counter counts up.
Time Needed for Diagnosis: 60 s x 16 time(s) or more
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgment
Judge as OK and clear the NG if the continuous time while the following conditions are established is more than the predetermined time.
| Malfunction Criteria | Threshold Value |
|---|---|
| Maximum - Minimum tank pressure | ≥ 0 kPa (0.375 mmHg, 0 inHg) |
Time Needed for Diagnosis: Less than 1 second